2990120055061 has 8 divisors (see below), whose sum is σ = 2990959184664. Its totient is φ = 2989281039360.

The previous prime is 2990120055049. The next prime is 2990120055067. The reversal of 2990120055061 is 1605500210992.

It can be written as a sum of positive squares in 4 ways, for example, as 299175086961 + 2690944968100 = 546969^2 + 1640410^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2990120055061 - 2²¹ = 2990117957909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2990120055067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83279265 + ... + 83315161.

It is an arithmetic number, because the mean of its divisors is an integer number (373869898083).

Almost surely, 2^{2990120055061} is an apocalyptic number.

It is an amenable number.

2990120055061 is a deficient number, since it is larger than the sum of its proper divisors (839129603).

2990120055061 is a wasteful number, since it uses less digits than its factorization.

2990120055061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56951.

The product of its (nonzero) digits is 48600, while the sum is 40.

The spelling of 2990120055061 in words is "two trillion, nine hundred ninety billion, one hundred twenty million, fifty-five thousand, sixty-one".